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Table of Contents
1 Motherboard Description
1.1 Overview......................................................................................................................7
1.2 Motherboard Manufacturing Options ...........................................................................9
1.3 Form Factor .................................................................................................................9
1.4 I/O Shield...................................................................................................................10
1.5 Microprocessor ..........................................................................................................11
1.5.1 Microprocessor Heatsink and Clips .............................................................11
1.5.2 Microprocessor Upgrade .............................................................................11
1.6 Main Memory.............................................................................................................12
1.6.1 EDO DRAM.................................................................................................12
1.6.2 Parity/ECC DRAM .......................................................................................12
1.7 Chipset ......................................................................................................................13
1.7.1 82441FX PCI Bridge and Memory Controller (PMC)...................................13
1.7.2 82442FX Data Bus Accelerator (DBX) ........................................................13
1.7.3 82371SB PCI/ISA IDE Xcelerator (PIIX3)....................................................13
1.7.4 Universal Serial Bus Support.......................................................................14
1.7.5 IDE Support.................................................................................................14
1.8 Super I/O Controller...................................................................................................15
1.8.1 Serial Ports..................................................................................................15
1.8.2 Parallel Port.................................................................................................15
1.8.3 Floppy Controller.........................................................................................15
1.8.4 Keyboard and Mouse Interface ...................................................................16
1.8.5 Real-Time Clock, CMOS RAM, and Battery ................................................16
1.8.6 Infrared Support ..........................................................................................17
1.9 Audio Subsystem.......................................................................................................17
1.9.1 Audio Drivers and Utilities............................................................................18
1.9.2 CD-ROM Audio Connector..........................................................................18
1.9.3 Telephony Connector..................................................................................18
1.9.4 Wavetable Connector..................................................................................18
1.10 Management Extension Hardware.............................................................................19
1.11 Motherboard Connectors...........................................................................................20
1.11.1 CD Audio (J1E2)..........................................................................................21
1.11.2 Wavetable Upgrade Connector (J1E1)........................................................21
1.11.3 Telephony Connector (J1F1).......................................................................21
1.11.4 Floppy Drive Connector (J9J2)....................................................................22
1.11.5 PCI IDE Connectors (J9J1, J8J1)................................................................23
1.11.6 Power Supply Connector (J5M1).................................................................23
1.11.7 Microprocessor Fan Connector (J7M1) .......................................................24
1.11.8 Auxiliary Fan Connector (J9A1)...................................................................24
1.11.9 Front Panel Connectors...............................................................................25
1.11.10 Back Panel Connectors...............................................................................27
1.12 Add-in Board Expansion Connectors.........................................................................31